Author: cy
Date: Sat Sep 19 03:58:31 2015
New Revision: 287984
URL: https://svnweb.freebsd.org/changeset/base/287984

Log:
  MFC r287651, r287652, r287653.
  
  Fix mutex errors, fixup typos in comments.
  
  Obtained from:        NetBSD r1.4.
  -This lie, anr those below, will be ignored--
  > Description of fields to fill in above:                     76 columns --|
  > PR:                       If a GNATS PR is affected by the change.
  > Submitted by:             If someone else sent in the change.
  > Reviewed by:              If someone else reviewed your modification.
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  > Obtained from:            If the change is from a third party.
  > MFC after:                N [day[s]|week[s]|month[s]].  Request a reminder 
email.
  > MFH:                      Ports tree branch name.  Request approval for 
merge.
  > Relnotes:                 Set to 'yes' for mention in release notes.
  > Security:                 Vulnerability reference (one per line) or 
description.
  > Sponsored by:             If the change was sponsored by an organization.
  > Differential Revision:    https://reviews.freebsd.org/D### (*full* phabric 
URL needed).
  > Empty fields above will be automatically removed.
  
  _M   .
  M    sys/contrib/ipfilter/netinet/ip_state.c

Modified:
  stable/10/sys/contrib/ipfilter/netinet/ip_state.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/contrib/ipfilter/netinet/ip_state.c
==============================================================================
--- stable/10/sys/contrib/ipfilter/netinet/ip_state.c   Sat Sep 19 03:53:37 
2015        (r287983)
+++ stable/10/sys/contrib/ipfilter/netinet/ip_state.c   Sat Sep 19 03:58:31 
2015        (r287984)
@@ -1,4 +1,4 @@
-/*     $FreeBSD$       */
+/*     $FreeBSD$ */
 
 /*
  * Copyright (C) 2012 by Darren Reed.
@@ -1054,7 +1054,7 @@ ipf_state_putent(softc, softs, data)
 /* to pointers and adjusts running stats for the hash table as appropriate. */
 /*                                                                          */
 /* This function can fail if the filter rule has had a population policy of */
-/* IP addresses used with stateful filteirng assigned to it.                */
+/* IP addresses used with stateful filtering assigned to it.                */
 /*                                                                          */
 /* Locking: it is assumed that some kind of lock on ipf_state is held.      */
 /*          Exits with is_lock initialised and held - *EVEN IF ERROR*.      */
@@ -1081,7 +1081,7 @@ ipf_state_insert(softc, is, rev)
        }
 
        /*
-        * If we could trust is_hv, then the modulous would not be needed,
+        * If we could trust is_hv, then the modulus would not be needed,
         * but when running with IPFILTER_SYNC, this stops bad values.
         */
        hv = is->is_hv % softs->ipf_state_size;
@@ -1672,6 +1672,10 @@ ipf_state_add(softc, fin, stsave, flags)
                SBUMPD(ipf_state_stats, iss_bucket_full);
                return 4;
        }
+
+       /*
+        * No existing state; create new
+        */
        KMALLOC(is, ipstate_t *);
        if (is == NULL) {
                SBUMPD(ipf_state_stats, iss_nomem);
@@ -1683,7 +1687,7 @@ ipf_state_add(softc, fin, stsave, flags)
        is->is_rule = fr;
 
        /*
-        * Do not do the modulous here, it is done in ipf_state_insert().
+        * Do not do the modulus here, it is done in ipf_state_insert().
         */
        if (fr != NULL) {
                ipftq_t *tq;
@@ -1711,7 +1715,7 @@ ipf_state_add(softc, fin, stsave, flags)
        /*
         * It may seem strange to set is_ref to 2, but if stsave is not NULL
         * then a copy of the pointer is being stored somewhere else and in
-        * the end, it will expect to be able to do osmething with it.
+        * the end, it will expect to be able to do something with it.
         */
        is->is_me = stsave;
        if (stsave != NULL) {
@@ -3652,7 +3656,6 @@ ipf_state_del(softc, is, why)
                        softs->ipf_state_stats.iss_orphan++;
                return refs;
        }
-       MUTEX_EXIT(&is->is_lock);
 
        fr = is->is_rule;
        is->is_rule = NULL;
@@ -3664,6 +3667,7 @@ ipf_state_del(softc, is, why)
        }
 
        is->is_ref = 0;
+       MUTEX_EXIT(&is->is_lock);
 
        if (is->is_tqehead[0] != NULL) {
                if (ipf_deletetimeoutqueue(is->is_tqehead[0]) == 0)
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